Operator Ace's Simple Infinite Survival

O.A.S.I.S is a simple wave-based zombie survival shooter that combines the best elements of classic arcade-style shooters with the atmosphere of an alternate 80's dystopian world.

Designed to give you and you're friends a break from online competitive shooters. You must fight off hordes of the undead as they relentlessly pursue you through the Levels. With each passing wave, the zombies become stronger and more dangerous, forcing you to constantly adapt your strategies and weapons to stay alive.

So what makes O.A.S.I.S any different from some plain "Zombies mode"?

INSANE ACTION! want airstrikes? Yup go ahead! Need a personal Defense and Emotional Support Companion bot? The P.D.E.S.C is there to help! Out of ammo? All good, Go ahead and call in that emergency supply drop! Those and Many more features to come!

- No grinding for unlocks! Everything is in-level - whether you find it and purc...